json和对象相互转换

package com.qianmosen.utils;

import java.io.IOException;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.StringTokenizer;
import net.sf.json.JSONArray;
import net.sf.json.JSONObject;
import com.fasterxml.jackson.annotation.JsonInclude.Include;
import com.fasterxml.jackson.core.JsonGenerationException;
import com.fasterxml.jackson.core.JsonParseException;
import com.fasterxml.jackson.databind.JsonMappingException;
import com.fasterxml.jackson.databind.ObjectMapper;
@SuppressWarnings("unchecked")
public class JsonUtil {

@SuppressWarnings("rawtypes")
/**
 * json 和  string 转换
 * @param jsonArrStr
 * @param clazz
 * @param classMap
 * @return
 */
public static List getListFromJsonArrStr(String jsonArrStr, Class clazz, Map classMap)
  {